20 Calories to kJ
20 Cal = 83.68 kJ
The working
kJ = Cal × 4.184
20 × 4.184 = 83.68 kJ
Shown to 2 decimal places, as the app shows it. One food Calorie (kcal) is 4.184 kilojoules.
kJ, Calories and kcal
Calories are the unit most recipes and fitness apps use. A food Calorie, written Cal here and also called kcal, is 4.184 kJ, and kilojoules (kJ) are what many food labels show. 20 Cal is 83.68 kJ, so a tracker that says 20 Cal and a label that says 83.68 kJ describe the same energy.
This is a small amount of energy, closer to a single piece of fruit or a drink than to a meal.
For scale, half of this amount is 10 Cal, which is 41.84 kJ. Twice it is 40 Cal, which is 167.36 kJ.
Foods with about this much energy
- About the same as a tomatoOne serving is 22 Cal (92.05 kJ).
- About the same as a carrotOne serving is 25 Cal (104.6 kJ).
- About 65% of a cucumberOne serving is 30 Cal (125.52 kJ).
These are everyday single-serving estimates from the app's food list, not nutrition labels. Recipes and portions vary. See the whole list.
Walking guide
2 to 7 min of walking.
Adult reference guide: 45 to 120 kg at a reference walking pace. Actual times may be outside this range. The exercise page lists the other activities.
Nearby values
Figures are estimates, provided as a guide only. Comparisons are everyday approximations, not a record of what anyone has eaten and not a recommendation.